iPhone 5 : Advices for better battery.
Before I had an iPhone, I was terrified about its battery because of discussions.
However bought one at 18.12.2012 used to %0 and then fully charged to %100.
I've researched and tried a lot. Here is the result :
(Sorry for fingerprints.)
(6.0.1 to 6.0.2 updated during this battery life via 3g.)
----- Advices :
1) Turn off auto-brightness.
2) Turn off Bluetooth.
3) Turn off Wi-Fi or Cellular Data when you're not using it.
4) Turn off Location Services.
5) Turn off iTunes & App Stores & iCloud matches while there is nothing new to sync.
6) Turn off Siri.
7) Turn off Mail-Push and Fetch.
+ For users who is gonna say that "Turn-off iPhone too." :
I used most of things on the phone. Took pictures, scanned some pages, whatsapp'ed, found direction via navigate while using Siri, downloaded and also synced over +20 apps etc.
My saying is use it effectively. (Just when you need it.)
I hope it will be helpful.
iPhone 5, iOS 6.0.2